Everyone like free stuff and Newber are offering a chance to win an exclusive membership to their Newber phone call-management service. Newber is an application for the Apple iPhone and Apple iPhone 3G that allows the user to detect their location and transfer calls.

Newber gives the user the ability to managed incoming and outgoing phone calls by seamlessly switching between the phone numbers of your choice.

The iPhoner can seamlessly swap calls to another phone number when they move from car to office or maybe lose mobile reception; all they need to do is transfer the call to another handset or office phone, and the call transfer is transparent and completely unnoticeable to the caller.
A few videos below so you get the general idea.

Source — intomobile